Eyelid redness and swelling in infants may be caused by mosquito bites, blepharitis, bacterial conjunctivitis, trauma and other reasons. 1. Mosquito bites: If a baby’s eyes are bitten by mosquitoes, the toxins released by the mosquito bites may lead to eye allergies, and the baby’s eyelids are red and swollen, accompanied by pain and itching, etc. The baby’s eyelids may be swollen and swollen, but the baby’s eyelids may be swollen and swollen. 2. Blepharitis: Infants with suppurative inflammation of the eyelid glands, or blepharitis, may have red and swollen eyes, accompanied by eye pain, foreign body sensation, blurred vision and other discomforts. 3. Bacterial conjunctivitis: The redness and swelling of the eyelids of infants may also be caused by bacterial conjunctivitis, as the immune system of infants is not yet perfect, it is easy for bacterial infections to occur. Infants’ eyes also have different degrees of foreign body sensation, photophobia, tearing, itching, sticky purulent discharge and eyelid swelling. 4. Trauma: The skin of infants is relatively delicate, if the eye is traumatized such as bumping, impact, etc., the child may appear red and swollen eyelids, accompanied by eye pain, subcutaneous bruising and other symptoms. It is recommended that children with significant eyelid redness and swelling should be seen promptly for evaluation and treatment as prescribed by the doctor.